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- Be not a visit to Mr. George obligatory? 是不是必须我拜访乔治先生？
- obligatory reactant 专性反应体
- Attendance at school is obligatory. 上学是强制性的。
- It is obligatory upon us to protect the world from nuclear war. 保护世界免於核子战争是我们的义务。
- Is this business trip obligatory? 这次出差是不是规定的？
- I think compulsory education is obligatory. 我认为义务教育制是必须履行的。
- Be it obligatory on us to help the poor? 我们有义务帮助穷人吗?
- Is it obligatory on us to help the poor? 我们有义务帮助穷人吗?
- Attendance at primary school is obligatory. 上小学是义务的。
- The press conferences were almost obligatory. 这些新闻会议是不得已的。
- It is obligatory for us to obey the laws. 我们必须守法。
- Serum amyloid A (SAA) is a sensitive reactant in the acute phase. 血清淀粉样蛋白A(SAA)是一个非常敏感的急性相反应物。
- I think abiding by the law is obligatory . 我认为遵守法规是必须履行的义务。
- Is it obligatory on us to help the poor ? 我们有义务帮助穷人吗?
- Oxygen is often used as reactant in chemical processes. 在化学过程中，氧气经常充当为反应物。
- Attendance at tonight's meeting is obligatory. 今晚的会必须出席。
- Isn't a visit to Mr. George obligatory? 是不是必须拜访乔治先生?
- Obedience is obligatory on a soldier. 服从命令是军人的天职。
- This is our obligatory responsibility. 这是我们义不容辞的责任。
- Be the medical examination obligatory? 体检是必须的吗?
